Have you known this for so many years?

[PConline Talk] Humans have known from a very early time that it is not easy to corrupt foods stored at lower temperatures. Since the introduction of the world's first domestic refrigeration-compression refrigerator in the United States in 1910, after nearly 100 years of development, household refrigerators have entered the world's major families and have assumed the responsibility of refrigerating food for each family. One of the household appliances essential to every household. But then again, how much do we know about refrigerators? Are there any misunderstandings about the use of refrigerators in our daily lives? let's see it together.

Refrigerator classification, which is generally known to everyone, can be divided into two types according to the door type: double door, triple door, double door and multiple doors; Refrigeration methods can be divided into air-cooled refrigerators, direct-cooled refrigerators, and air-cooled refrigerators.

Misunderstanding 1: Health, cooked food put together

Many user friends like to put raw and cooked food together in the refrigerator for various reasons. In fact, this is often very easy to cause cross-infection, suffering from "refrigerator disease."

Raw and cooked food together

In general, some of the fresh ingredients we often come in contact with, such as pork, beef, fish, etc., are accompanied by a large amount of bacteria. If you put the cooked food together with these fresh ingredients, then parasitic on fresh ingredients. Bacteria within the bacteria can easily contaminate cooked food storage and achieve the goal of "sickness from the mouth."

Fresh meat ingredients also have bacteria

In addition, any food should be stored in the refrigerator less, try to buy and eat. If it is stored for too long, it will not only affect the freshness of the food, but it may also produce odors that can contaminate other foods.

Therefore, here I suggest that all friends, when using refrigerators to store food, try to avoid raw and cooked food together. If you want to store together, it is recommended to stratify, and before the food is put in, it is best wrapped in plastic wrap to prevent food freeze-drying, mutual contamination, the fruit should be cleaned and stored in the refrigerator.

Misunderstanding 2: Use every inch of land in the refrigerator

There are too many foods left in the festival. At this time, many friends will choose to put the food in the refrigerator. This is a frugal virtue worthy of advocacy, but if you do not care, put the refrigerator full of dangling, this is not necessarily a good thing!

It's not a good thing for refrigerators to be too full

Professionals in the industry believe that there must be a certain gap between the food or containers in the refrigerator to facilitate the circulation of cold air and ensure the necessary temperature. If the food in the refrigerator is squeezed too much, the heat load will be too large, resulting in waste of electricity. It will also cause the temperature to be higher than the set temperature, breed bacteria, and cause food spoilage. Moreover, the more food in the refrigerator, the more likely it is not clear what is inside.

Refrigerator storage adheres to the principle of "seven fullness"

Therefore, the author suggests that you have the best space for the refrigerator to store food, 60%, to 70% of the full limit, and regular cleaning of the storage space, to develop a good habit of cleaning the refrigerator before purchasing food.

Misunderstanding 3: Keep food as cold as possible

Many people will think that since food is not easy to corrupt at low temperatures, all foods can be stored well in the refrigerator. In fact, this idea is a misunderstanding. Not all foods are stored at a lower temperature, the better, different foods have their own appropriate temperature for storage.

Is it better to keep foods as cold as possible?

If the meat is to be stored for a long time, it can be placed in a "freeze grid" at -18°C. If it is only intended to store for two or three days, it should be placed in a "fresh-keeping compartment" at -2 to 5°C.

Should be placed in the corresponding box according to the length of storage

In addition, for some fruits and vegetables, cryogenic preservation will destroy its nutritional structure. For fruits and vegetables such as potatoes, the optimum storage temperature should be 2~4°C; for cucumbers, eggplants, tomatoes, etc., the suitable temperature for storage is 7~10°C; and some tropical fruits and subtropical fruits have poor adaptability to low temperature and low temperature. It will destroy its skin and make its meat spoil, so fruits like bananas, mangoes and lychees are not suitable for storing in the refrigerator.

Misunderstanding 4: The refrigerator does not need cleaning

For many people, we are all accustomed to cleaning electric fans, hoods, air conditioners, washing machines and other household appliances, but we have shown an unreasonable attitude towards the cleaning of refrigerators. In fact, to be honest, for home appliances such as air conditioners and electric fans, the food stored in the refrigerator is the food we consume. Therefore, the cleaning of refrigerators deserves our attention.

Refrigerator should be cleaned regularly

We all know that household appliances are prone to failure if they are not cleaned for long periods of use. In addition, because refrigerators often store different foods, it is easy to accumulate bacteria, and these bacteria are generally more adaptable, and some bacteria are still able to reproduce quickly at low temperatures of 0-10°C. In the process of growth and metabolism, many metabolic gases are produced, such as methane, hydrogen sulfide, methyl mercaptan, methylamine and other odorous gases. Mixing a variety of odorous gases will make the refrigerator emit unpleasant odors.

Refrigerator produces odor

Therefore, it is generally recommended to clean the refrigerator once a week. If conditions do not allow it, it is best to clean it twice a month. In addition to cleaning and disinfecting the internal parts of the refrigerator, the interior of the refrigerator must be disinfected with a disinfectant, such as drip trays and baffle slots. In addition, the outside of the refrigerator must be diligently cleaned of accumulated dust.

Refrigerator use matters needing attention

(1) When placing the refrigerator, do not place the refrigerator against the wall, it should be about 10cm from the wall, and the top of the refrigerator needs 30cm from the ceiling;
(2) When the power supply of the refrigerator fluctuates excessively or repeatedly, the use of the refrigerator should be suspended, and the refrigerator power plug must be pulled out to prevent the compressor from being burned out. And during power outages, the number of refrigerators to open the door should be reduced to extend the food preservation time;
(3) The refrigerator can not be used as a cooling device. Some households will keep the refrigerator door open to better cool the room. This will seriously damage the compressor of the refrigerator and increase the workload of the compressor.
(4) Defrost the freezer compartment in time and clean the refrigerator freezer on a regular basis;
(5) Household refrigerators cannot store medicines and vaccines.

Conclusion: Refrigerators have long been an integral part of our daily lives as household appliances that store food. We must learn more about this commonly used appliance. With the above list of misunderstandings, I hope that the majority of friends can pay attention to it and avoid misunderstandings.

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